ES8201885A1 - Procedimiento para la fabricacion de gomas de borrar confor-madas - Google Patents
Procedimiento para la fabricacion de gomas de borrar confor-madasInfo
- Publication number
- ES8201885A1 ES8201885A1 ES496636A ES496636A ES8201885A1 ES 8201885 A1 ES8201885 A1 ES 8201885A1 ES 496636 A ES496636 A ES 496636A ES 496636 A ES496636 A ES 496636A ES 8201885 A1 ES8201885 A1 ES 8201885A1
- Authority
- ES
- Spain
- Prior art keywords
- weight
- parts
- optionally
- carrier
- introduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 abstract 5
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 abstract 2
- 239000000945 filler Substances 0.000 abstract 2
- 239000004014 plasticizer Substances 0.000 abstract 2
- 229920001195 polyisoprene Polymers 0.000 abstract 2
- 239000004608 Heat Stabiliser Substances 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- -1 and optionally Substances 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 239000004872 foam stabilizing agent Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229920001519 homopolymer Polymers 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L19/00—Erasers, rubbers, or erasing devices; Holders therefor
- B43L19/0025—Eraser or rubber material, e.g. comprising hard particles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/30—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Paints Or Removers (AREA)
Abstract
PROCEDIMIENTO PARA LA FABRICACION DE GOMAS DE BORRAR CONFORMADAS. LA MASA UTILIZABLE SE COMPONE DE 100 PARTES EN PESO DE UNA MASA POLIMERA FUNDAMENTAL, COMO LATEX DE CAUCHO NATURAL Y SINTETICO, 20 A 120 PARTES EN PESO DE PLASTIFICANTE, 0 A 30 PARTES EN PESO EN AGENTES REDUCTORES DE LA VISCOSIDAD, 0 A 200 PARTES EN PESO DE MATERIALES DE CARGA Y HASTA 5 PARTES EN PESO DE ESTABILIZADORES FRENTE AL CALOR. LA MASA, PRIMERAMENTE PASTOSA, SE ESPONJA POR INCORPORACION MECANICA DE GAS, SE INCORPORA SOBRE UN SOPORTE O DENTRO DE MOLEDE, SE GELIFICA POR CALENTAMIENTO, SE SEPARA DEL SOPORTE O MOLDE Y SE LLEVA MECANICAMENTE A LA FORMA DEFINITIVA DESEADA.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792945326 DE2945326A1 (de) | 1979-11-09 | 1979-11-09 | Verfahren zur herstellung geformter radierer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES496636A0 ES496636A0 (es) | 1982-01-01 |
| ES8201885A1 true ES8201885A1 (es) | 1982-01-01 |
Family
ID=6085608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES496636A Expired ES8201885A1 (es) | 1979-11-09 | 1980-11-07 | Procedimiento para la fabricacion de gomas de borrar confor-madas |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0028710B1 (es) |
| AT (1) | ATE6920T1 (es) |
| DE (2) | DE2945326A1 (es) |
| ES (1) | ES8201885A1 (es) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3131457C2 (de) * | 1981-08-08 | 1984-06-20 | Fa. J.S. Staedtler, 8500 Nürnberg | Radiergummi mit poröser Struktur |
| JP2773016B2 (ja) * | 1993-04-28 | 1998-07-09 | ダイワ精工株式会社 | 擬似餌 |
| US7316841B1 (en) * | 1999-08-30 | 2008-01-08 | Sakura Color Products Corporation | Eraser |
| JP4570174B2 (ja) * | 2008-02-19 | 2010-10-27 | 株式会社トンボ鉛筆 | 字消し |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE932540C (de) * | 1951-11-20 | 1955-09-01 | Ursania Chemie G M B H | Radiermasse aus Polyvinylchlorid oder deren Mischpolymerisaten, Weichmachern und Fuellstoffen |
| DE1057777B (de) * | 1953-08-18 | 1959-05-21 | Sterling William Alderfer | Einrichtung zum regelbaren Zufuehren von Fluessigkeit und Luft zu einer Vorrichtung zum Verschaeumen einer Fluessigkeit, wie Kautschukmilch |
| SE7409542L (sv) * | 1974-07-23 | 1976-01-26 | Tarkett Ab | Elastiskt, mjuk skummaterial och sett for framstellning derav. |
-
1979
- 1979-11-09 DE DE19792945326 patent/DE2945326A1/de not_active Withdrawn
-
1980
- 1980-10-09 EP EP80106119A patent/EP0028710B1/de not_active Expired
- 1980-10-09 AT AT80106119T patent/ATE6920T1/de not_active IP Right Cessation
- 1980-10-09 DE DE8080106119T patent/DE3067369D1/de not_active Expired
- 1980-11-07 ES ES496636A patent/ES8201885A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0028710A1 (de) | 1981-05-20 |
| DE2945326A1 (de) | 1981-05-21 |
| DE3067369D1 (en) | 1984-05-10 |
| EP0028710B1 (de) | 1984-04-04 |
| ES496636A0 (es) | 1982-01-01 |
| ATE6920T1 (de) | 1984-04-15 |
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